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Seeding a material is a concept used in fluid dynamics to describe the act of introducing specific
Seeding a material is a concept used in fluid dynamics to describe the act of introducing specific particulate
Particulates – also known as atmospheric aerosol particles, atmospheric particulate matter, particulate matter (PM) or suspended particulate matter (SPM) – are microscopic particles of solid or liquid matter suspended in the air. The te ...
s or other foreign substances into a stream of fluid being evaluated. An altered fluid will be described as having a seeded flow.
Details
These particulates are generally small enough to be carried by the fluid but large enough to be picked up using aflow visualization
Flow visualization or flow visualisation in fluid dynamics is used to make the flow patterns visible, in order to get qualitative or quantitative information on them.
Overview
Flow visualization is the art of making flow patterns visible. M ...
technique, such as particle image velocimetry (PIV). In reference to aerodynamic
Aerodynamics, from grc, ἀήρ ''aero'' (air) + grc, δυναμική (dynamics), is the study of the motion of air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dyn ...
testing, such as wind tunnel
Wind tunnels are large tubes with air blowing through them which are used to replicate the interaction between air and an object flying through the air or moving along the ground. Researchers use wind tunnels to learn more about how an aircraft ...
testing, water tunnel testing, or any other test investigating the flow of a fluid which may be invisible to the naked eye, seeding a flow is often the only way to take visual measurements. Simple examples of a seeded flow include the introduction of smoke into a low speed wind tunnel to see the general path of the air, or injecting colored dye into a water tunnel to see secondary flow structures such as hairpin vortices.
As stated in ''The Handbook of Fluid Dynamics'', an ideal seeding particle should have uniform properties such that its density is the same as the fluid that it's added to.
See also
*Flow visualization
Flow visualization or flow visualisation in fluid dynamics is used to make the flow patterns visible, in order to get qualitative or quantitative information on them.
Overview
Flow visualization is the art of making flow patterns visible. M ...
* Fluid dynamics
* Fluid mechanics
Fluid mechanics is the branch of physics concerned with the mechanics of fluids ( liquids, gases, and plasmas) and the forces on them.
It has applications in a wide range of disciplines, including mechanical, aerospace, civil, chemical and ...
* Streamlines, streaklines, and pathlines
Streamlines, streaklines and pathlines are field lines in a fluid flow.
They differ only when the flow changes with time, that is, when the flow is not steady.
Considering a velocity vector field in three-dimensional space in the framework of ...
References
Fluid dynamics {{fluiddynamics-stub